Let’s face it: hard drives are never that fast to begin with, but if yours is an external drive, it might be slower for a particular reason. While it’s true that a mechanical HDD is never going to beat one of the most expensive SSDs (or any SSDs, period), it can still be a great option for bulk storage — provided you give it the right tools to work with.
When it comes to external drives, a few more factors come into play, and any one of them could be slowing down your file transfers. Here’s how to identify the problem and fix it.
External hard drives are slow, but not that slow
There’s slow, and then there’s even slower
External HDDs are easy to underestimate, and with good reason. Next to a portable SSD, they feel super sluggish, and, well … they are. They use spinning platters and moving parts, so large transfers take longer, small files can drag, and you generally just have to be a little patient. But that doesn’t mean every painfully slow transfer is just as it should be, though.
A healthy external hard drive connected properly should still be perfectly usable for bulk storage, backups, photos, videos, and the kind of files that don’t need SSD-level speed. Even small HDDs can make a difference in any kind of backup strategy.
While we’d expect an HDD to be pretty darn slow, if you’re copying one large file and the transfer is crawling along like the drive is from 2001, the problem may not be the HDD itself. It may be the connection between the drive and your PC.
That’s where external HDDs get a little annoying. The drive itself might support USB 3.0 speeds, but if the cable, port, hub, dock, or adapter is forcing it down to an older USB mode, your transfer speeds can fall off hard. Before you write the whole drive off as slow, it’s worth checking whether you’re giving it the connection it actually needs.
The cable is part of the speed limit
It might fit the port, but that’s just part of the equation
The annoying thing about USB cables is that whether the cable fits or not is just one tiny part of the whole story. Your external HDD may plug in just fine, light up, and show up on your PC or NAS, but that doesn’t tell you what speed it’s actually using. That’s just part of the confusing nature of USB cables and ports.
If a hub, cable, dock, or adapter only supports USB 2.0 data, your drive can get shoved down to speeds that make even a perfectly healthy HDD feel even worse than it needs to.
This is where the confusion gets even worse with USB-C. A USB-C cable can be great for charging and still be unimpressive for data, because the connector shape doesn’t guarantee the speed. For an external HDD, you (obviously) don’t need a fancy USB 20Gbps cable, but you do need something that supports at least USB 3.0. That’s already more than enough for most single external HDDs.
The same goes for whatever sits between the drive and your PC. A slow front-panel port, an old hub, a monitor’s USB passthrough, or a random adapter can all become the weakest link. That’s why the cable is only part of the speed limit: the whole connection path has to support the faster USB mode, or your external HDD may never run as fast as it can. And yes, I know that that’s not very fast to begin with, but that only makes this whole journey to optimization even more important.
Test the connection before you buy anything
Figure out where the bottleneck hides
So, if you suspect your cable is bottlenecking your poor old HDD, the good news is that a replacement is cheap. But the better news is that you shouldn’t buy anything just yet — diagnose the problem first.
Plug the drive directly into your PC if you’re using a hub. If you, for some reason, plug your drive into the monitor USB hub, switch to the back port on your PC. Get rid of any extension cables and obstacles. It’s just the HDD and your PC for this one.
Then, copy one large file and see what happens. A big video file or a backup archive is a much better test than a folder full of tiny files, because small-file transfers can make any HDD look painfully slow even when nothing is wrong. Then, repeat the process in your old setup, using whatever cable/hub/dock scenario you had going on.
If the speed suddenly improves when you cut out the middle man, then your problem is solved: you’ve found the weak link. If it doesn’t, swap the cable next, try another USB port, and finally another PC entirely if you can. The point is to look for a pattern: if the same drive performs much better with one cable or port, then that’s probably the bottleneck.
Buy the right cable, not the most expensive one
USB cables can be super confusing
If the cable does turn out to be the problem, you don’t have to go overboard. For a normal external HDD, a decent USB 3.0 cable is enough, which may also be labeled as USB 3.2 Gen 1 or USB 5Gbps. What matters most is that it supports proper, fast data transfer, matches the connector on your drive, and is new. Amazon sells these for around $5.
Skip the ultra-premium cables unless you’re also using external SSDs that might benefit from them.
The cable fix has limits
If you’ve tried all the variables I outlined above, and your HDD is still ridiculously bad, it’s time to look to the drive or to the enclosure.
Keep in mind that small files are brutal on HDDs, so if you’re copying folders filled with those, then speeds may be terrible. But large file transfers that consistently underperform? It might be time for a new drive entirely.
Stephan is the sports journalist for the Maple Grove Report.
